1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mario62 [17]
2 years ago
8

Urgent help needed in number four.Thank you in advance!​

Physics
1 answer:
likoan [24]2 years ago
6 0

The energy produced by the headlamp at the end of 5 minutes is determined as 1,440 J.

<h3>Energy supplied by the lamp</h3>

The energy supplied by the lamp is calculated as follows;

E = Pt

E = IVt

where;

  • I is current = 0.4 A
  • V is voltage = 12 V
  • t is time = 5 mins = 5 x 60 s = 300 s

E = 0.4 x 12 x 300

E = 1,440 J

Thus, the energy produced by the headlamp at the end of 5 minutes is determined as 1,440 J.

Learn more about energy here: brainly.com/question/25959744

#SPJ1

You might be interested in
100 points! please help!!!
IRINA_888 [86]

Answer:

Explanation:

A plane flies due north (90° from east) with a velocity of 100 km/h for 2 hours.

With no wind, it will be 100*2 = 200 km north of its starting point.

But a steady wind blows southeast at 30 km/h at an angle of 315° from due east.

So the wind itself will blow the plane 30*2 = 60km at an angle of 315° from due east.

That is the same as 60*cos315° = 42.43km due east and 60*sin315° = -42.43km north.

Combining, the plane is at 42.43km due east and 200-42.43 = 157.57km due north from its starting point.

7 0
2 years ago
Read 2 more answers
What is the proper way to start a fire?
Katyanochek1 [597]

Answer:

Explanation:

STEP 1: Gather Your Tools. There's a bit more to building a great campfire than simply placing a few logs in a heap ... If your site has a fire ring, you'll probably have to push the ash and charcoal from ... (Remember, tinder is the really light, quick burning material.) 1. ... Then build a larger teepee of firewood over the kindling.

6 0
3 years ago
What is the average velocity of a car that travels 30 kilometers due wet in 0.50
rodikova [14]

Answer:

60km/hr west

Explanation:

When you are dealing with velocity you always name the direction its going in

3 0
3 years ago
How much force is needed to keep the 750000 Newton Space Shuttle moving at a constant speed of 28000 km/h, in a straight line?
Alika [10]

The force needed to keep the space shuttle moving at constant speed is 0.

The given parameters;

  • <em>weight of the space shuttle, F = 750,000 N</em>
  • <em>constant speed of the space shuttle, v = 28,000 km/h</em>

The mass of the space shuttle is calculated as follows;

W = mg\\\\m = \frac{W}{g} \\\\m = \frac{750,000}{9.8} \\\\m = 76,530.61 \ kg

The force needed to keep the space shuttle moving at constant speed is calculated as follows;

F = ma

F = 76,530.61 \times a

where;

a is the acceleration of the space shuttle

At a constant speed, acceleration is zero.

F = 76,530.61 x 0

F = 0

Thus, the force needed to keep the space shuttle moving at constant speed is 0.

Learn more here:brainly.com/question/16374764

6 0
2 years ago
The time constant for RC circuit with the values of R1 and C1 is 5ms. What will be the time constant for a new RC circuit with t
lions [1.4K]

Answer:

d. 25 ms

Explanation:

  • In a RC circuit we call time constant to the product of the resistance times the capacitance, which represents the time when the charge reaches to the 63% of the final value, as follows:

       \tau_{1} = R_{1} *C_{1}  = 5 ms (1)

  • If we have a new circuit with new values for R and C, the time constant will be defined in the same way, as follows:

       \tau_{2} =10* R_{1} *0.5*C_{1}  = 5*(R_{1}* C_{1}) = 5* \tau_{1} = 5* 5 ms = 25 ms (2)

6 0
2 years ago
Other questions:
  • A 1.7 kg book is lying on a 0.77 m -high table. You pick it up and place it on a bookshelf 2.0 m above the floor. how much work
    12·1 answer
  • Running out of time!!! PLEASE HELP
    9·2 answers
  • A longitudinal wave is a type of wave that transfers energy _____ to the direction of wave motion. A transverse wave, on the oth
    8·2 answers
  • In my solar system, we have a planet that is the innermost to our star that is exactly like the innermost planet in your solar s
    13·1 answer
  • How would you go about separating the components of a mixture of sand, gravel, salt and iron filings
    14·1 answer
  • IT FOR 22 PTS The______of a wave is the number of wavelengths that pass a fixed point in a second.
    9·1 answer
  • Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists d
    11·2 answers
  • Based on our study of electromagnets, what would be the best thing to do to a generator in order to produce more electricity?
    6·2 answers
  • Which is true of the greenhouse effect?
    5·1 answer
  • Is it point<br> A,B,C or D
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!